How to calculate totals inside gridview?

Do Afonso asked:

I have a gridview(Gridview1) that has 5 columns as below:
1. The 1st column is databound. It binds to a “CustomerID” column of SQL Server customers table;
2. The 2nd column is databound. It binds to a “CustomerName” column of SQL Server customers table;
3. The 3rd column is databound. It binds to a “ProductID” column of SQL Server customers table;
4. The 4th column is an ItemTamplate. It binds to a “UnitPrice” column of SQL Server customers table.This column contains TexBox (unitPriceTextBox) control inside ItemTamplate;
5. The 5th column is an ItemTamplate. It binds to a “DiscountPercentage” column of SQL Server customers table.This column contains TexBox (discountPercentageTextBox) control inside ItemTamplate;
6. The 6th column is an ItemTamplate. It does not bind to any SQL Server table. But has to contain the total value of the row. This column contains TexBox (totalWithVTATextBox) control inside ItemTamplate;
ALL I NEED TO NOW IS HOW TO CALCULATE THE TOTAL UNIT PRICE IN A FOOTER LABEL (unitPriceTotalLabel) WHEN THE PAGE 1st LOADS AND EVEN WHEN THE USER MAKE CHANGES TO A COLUMN CELL LIKE CHANGING UNIT PRICE OR DELETING A SPECIFIC ROW.
I ALSO WANT TO KNOW HOW TO CALCULATE THE TOTAL IN EACH ROW, THIS IS: THE UNIT PRICE WITH VTA.
I appreciate any help.

Tags: C#

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

Cancel

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

Please note that all posts will be submitted under the http://www.codeproject.com/info/cpol10.aspx.